The deformed Inozemtsev spin chain
The Inozemtsev chain is an exactly solvable interpolation between the short-range Heisenberg and long-range Haldane–Shastry (HS) chains. In order to unlock its potential to study spin interactions with tunable interaction range using the powerful tools of integrability, the model's mathematical...
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2024-12-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.17.6.155 |
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| author | Rob Klabbers, Jules Lamers |
| author_facet | Rob Klabbers, Jules Lamers |
| author_sort | Rob Klabbers, Jules Lamers |
| collection | DOAJ |
| description | The Inozemtsev chain is an exactly solvable interpolation between the short-range Heisenberg and long-range Haldane–Shastry (HS) chains. In order to unlock its potential to study spin interactions with tunable interaction range using the powerful tools of integrability, the model's mathematical properties require better understanding. As a major step in this direction, we present a new generalisation of the Inozemtsev chain with spin symmetry reduced to $\textit{U}(1)$, interpolating between a Heisenberg XXZ chain and the XXZ-type HS chain, and integrable throughout. Underlying it is a new quantum many-body system that extends the elliptic Ruijsenaars system by including spins, contains the trigonometric spin-Ruijsenaars–Macdonald system as a special case, and yields our spin chain by 'freezing'. Our models have potential applications from condensed-matter to high-energy theory, and provide a crucial step towards a general theory for long-range integrability. |
| format | Article |
| id | doaj-art-39dcd1c153ee4ecdaadc3653f29a6f15 |
| institution | OA Journals |
| issn | 2542-4653 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SciPost |
| record_format | Article |
| series | SciPost Physics |
| spelling | doaj-art-39dcd1c153ee4ecdaadc3653f29a6f152025-08-20T02:37:33ZengSciPostSciPost Physics2542-46532024-12-0117615510.21468/SciPostPhys.17.6.155The deformed Inozemtsev spin chainRob Klabbers, Jules LamersThe Inozemtsev chain is an exactly solvable interpolation between the short-range Heisenberg and long-range Haldane–Shastry (HS) chains. In order to unlock its potential to study spin interactions with tunable interaction range using the powerful tools of integrability, the model's mathematical properties require better understanding. As a major step in this direction, we present a new generalisation of the Inozemtsev chain with spin symmetry reduced to $\textit{U}(1)$, interpolating between a Heisenberg XXZ chain and the XXZ-type HS chain, and integrable throughout. Underlying it is a new quantum many-body system that extends the elliptic Ruijsenaars system by including spins, contains the trigonometric spin-Ruijsenaars–Macdonald system as a special case, and yields our spin chain by 'freezing'. Our models have potential applications from condensed-matter to high-energy theory, and provide a crucial step towards a general theory for long-range integrability.https://scipost.org/SciPostPhys.17.6.155 |
| spellingShingle | Rob Klabbers, Jules Lamers The deformed Inozemtsev spin chain SciPost Physics |
| title | The deformed Inozemtsev spin chain |
| title_full | The deformed Inozemtsev spin chain |
| title_fullStr | The deformed Inozemtsev spin chain |
| title_full_unstemmed | The deformed Inozemtsev spin chain |
| title_short | The deformed Inozemtsev spin chain |
| title_sort | deformed inozemtsev spin chain |
| url | https://scipost.org/SciPostPhys.17.6.155 |
| work_keys_str_mv | AT robklabbersjuleslamers thedeformedinozemtsevspinchain AT robklabbersjuleslamers deformedinozemtsevspinchain |